finnet



(No Model.) 2 sheets-sheet 1.

J. R. PINNB'Y. Dental Spittoo'n.

No'. 241,949'. Patented May 24, 188|.

MVLESSEL lrlwpuph @MLK/14,

(No Model.)

' 2 Sheets-Sheet 2.- J. R. FINNEY. Dental Spittoon..

No. 241,949.` Patented May 24,1881.

N. PEIERS, Phokhogriw, Wm D. C.

- UNITED STATES PATENT OFFICEo JOSEPH R. FINNEY, OF PITTSBURG,PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO LEE S. SMITH, OF SAME PLACE.

I DENTAL SPITTOON.

SPECIFICATION forming part of Letters Patent No. 241,949, dated May 24,1881.

Application filed April 16,1880. (No model.)

To all whom it may concern:

Beit known that I, JOSEPH R. FINNEY, of Pittsburg, in the county ofAllegheny and State of Pennsylvania, have invented a new and usefulImprovement in Dental Spittoons; and I do hereby declare the followingto be a full, clear, and exact description thereof, reference being hadthe accompanying drawings, in which.-

'Figure l is a perspective view of a dental chair provid ed with myimproved spittoon. Fig. 2 is a sectional view of the spitt-oon, showinga portion of the discharge and supply pipes. Fig. 3 is a detached planview of the supporting-arm and Fig. 4 is a detached sectional view,showing the manner in which the supply and discharge pipes are conductedthrough the lioor or wall of the room.

Like letters of reference indicate like parts in each.

My invention relates to spittoons for dental purposes; and it consists,first, in flexible supply and discharge pipes so arranged as to enablethe spittoon to be moved at pleasure; second, in forming a trap inconnection with the flexible discharge-pipe to prevent gas and anydisagreeable odor from passingup from the sewer; third, in couductin gfresh water to the spittoon through a flexible supply-pipe; fourth, inthe manner of passing the discharge and supply pipes through the flooror wall of the room; 'and fifth, in the arrangement and form of thebracket or arm for attaching the spittoon to the arm of the dentalchair, as willA hereinafter more fully appear.

I will now describe my invention so that others skilledin the artmaymanufacture the same.

In the drawings, a represents the bowl of the spittoon, which maybeconstructed of the usual pattern, having a tube, b, around the rim ofthe sam e, in which tube are orifices c, through which the water dripsinto and down the sides of the basin, andthence passes out through thewasteppe d, which extends downward from the bottom ofthe basin. -At theend of the pipe d is a horizontal pipe, e, which connects with andextends at a right angle from the pipe d. In the lower side of the pipec, at a point near the end of thepipe d, is a round opening or orifice,j', which is surrounded by a collar, g, on the outside of the pipe, onwhich collar g is cut a screw-thread.

Screwed onto the collar g is a globular receptacle, h, the purpose ofwhich is to catch and retain the gold fillings which pass from the basina.

Extending from the pipe e upward, parallel with the discharge-pipe d, isa pipe, c', which reaches to about the level of the bottom ofthe basina. The top end of this pipe t' is open,

Vand may be iiared or cup-shaped, as shown in Fig. 2, so as to catch anywater that may drip from the water-supply pipe j, which extends from thetube or pipe' b, which surrounds the basin, down through the waste-pipei into and through the outer end of the waste-pipe e, so as to projectla few inches beyond the end ot' the waste-pipe e. In the pipe j, at apoint between the tube b and the upper end of the pipe z', is a cock, k,to regulate the ow of water to the basin.

k' is a bracket or arm provided with a ring, k2, which surrounds thepipe d, and a ring, k3, which surrounds the pipe t', just below thelevel of the basiitfand thence the arm or bracket extends and isfastened to a suitable stand or to the arm of the dental chair, as shownin Fig. l. The ring k2 is formed in two sections, which are hingedtogether and fastened, by a screw, 7c, around the pipe d, so that thespittoon may be easily raised or lowered. rI he end of the arm 7c passesloosely through a socket,

765, in the arm of the chair, so that when the chairis tilted thespittoon will remain in a level or horizontal position. These parts ofthe spittoon and pipes already described may be constructed of anysuitable material, metal, however, being preferred. v

Attached to the end of the waste-pipe d is a flexible tube, l, whichpasses thence to a metal pipe, m, which opens from the wall or floor andextends then ce to the discharge out of the building. The end of thepipe m, which extends through the wall or f loor of the room, isthreaded, and over this thread is screwed a ring or plate, n, which ringor plate is fastened to the oor or wall, so as to leave a portion of theend of the pipe m projecting sufficiently to allow of the end of theexible pipe I, which is proa vided with a suitable threaded metallicring or coupling, to be attached to the same.

Passing inside ofthe flexible tube l is a smaller exible tube, o, oneend of which is attached or coupled to the end of' the pipejand theothe1` end to a metallic pipe,p, which passes inside of the pipe m to apoint below thelevel of the Hoor or outside ofthe wall, and thencethrough the side of the discharge-pipe to the freshwater-supply pipe.The purpose ot the pipes o and p are to supply the water to the basin.

In order to prevent the gas and odor from the sewer passing into theroom a. portion of the flexible pipe m should be kept bent in a U shape,as shown in Fig. 1, or U or V shaped metallic pipes may be attached tothe end of the pipes h and j, the flexible pipes m and o then beingattached to the end ot' the trap so formed. The iiexible pipes in and oshould be long enough to allow of the spittoon being moved to anydesired position.

The spittoon may, it' desired, be attached to the dental chair, as shownin Fig. 1, or it may be attached to a suitable stand, which maybe placedin any desired position.

The advantages of my invention are that the spittoon as arranged is in aconvenient and compact form, it is adjustable in any desired position,and at the same time discharges the waste into the pipe which leads tothe sewer without permitting the gas or odor to escape into the room.

I am aware that spittoons having a iiexible waste-pipe have been usedbefore, and I do not broadly claim the same; but

What I do claim, and desire to secure by Letters Patent, is

1. In combination with a spittoon, a tieXiblc discharge or waste pipeanda trap for preventing the escape of gas from the sewer, substantiallyas described.

2. In combination with aspittoomatlexible supply-pipe for furnishing thebasin with water, substantially as described.

3. In combination with a spit-toon, a flexible discharge or waste pipeand a flexible supply pipe arranged inside ofthe waste-pipe,substantially as and for the purpose specified.

4. The combination ot' the tube m and its branch pipe with the centralwater-supply pipe and a collar for securing it in place, substantiallyas described.

5. In combination with a spittoon, a bracket for supporting the same,the arm ofsaid bracket beingjournaled in the arm of the dental chair,substantially as and for the purpose described.

In testimony whereof] have hereunto set my hand.

JOSEPH R. FINNEY.

Witnesses:

J. K. BAKEWELL, L. C. FITLER.

